The Knowledge

'The Knowledge' is the in-depth study of street routes and places of interest that taxicab-drivers in London must complete to obtain a licence to operate a black cab. It was initiated in 1865, and has changed very little ever since. It is the world's most demanding training course for taxicab-drivers; and applicants will usually need at least 12 'Appearances' (attempts at the final test), after preparation averaging 34 months, to pass the examination.

Whilst learning 'The Knowledge', would-be taxicab-drivers use the famous A-Z street maps to help them master the labyrinth of over 26,000 streets within a six mile radius of Charing Cross.

Today A-Z supplies maps to Knowledge Schools across London as folded paper, flat sheet and laminated maps so that the black cab drivers of the future can reach the high standard Londoners and visitors alike have come to expect from them.

If you want to become a taxi driver, you will need one of two types of taxi driver's licence - All London (Green Badge) or Suburban (Yellow Badge).

A-Z is not linked or endorse any of the above Knowledge Schools. A-Z is also not responsible for the content of the external Internet sites.

London Knowledge Map

London Knowledge Map

London Knowledge Map has been printed especially with those learning 'The Knowledge' in mind. Printed on two sheets, the large scale (5 inches to 1 mile) offers excellent clarity of detail.

  • Covering the same area as our standard A-Z London Premier Map
  • Enlarged scale (5 inches to 1 mile; 8 cm to 1 km)
  • Offers excellent clarity of detail, perfect for identifying runs

The map includes One-way streets, safety camera locations with maximum speeds and postcode districts. It is available as flat paper sheets or they can also be ordered mounted or encapsulated in plastic which is ideal for marking up runs.

See full details in our Product Catalogue.

London Sector Maps (Yellow Badge)

Yellow Badge Sector Maps

Suburban drivers (also known as Yellow Badge drivers) can choose from London's nine suburban sectors. They must know between 30 and 51 runs in detail. They also need to know all landmarks and places of interest on the runs.

  • Each sector map is based on London's borough boundaries
  • Contains A-Z standard street mapping

One-way streets and safety camera locations with their maximum speed limit are also featured. Each map is available as a flat paper sheets or they can also be ordered mounted or encapsulated in plastic which is ideal for marking up runs.

See full details in our Product Catalogue.

After the Knowledge

Once qualified, Black Cab drivers still need to keep up to date on new developments in and around the City of London. This is a daunting task, so several GPS enabled digital systems which use the latest A-Z mapping can assist the taxi drivers in their daily routine.

Each digital map continually pinpoints your location in the centre of the screen scrolling the map as you move. With comprehensive index data, it is simple to look up a street, postcode or place of interest and see its location on screen.

Cabbies Mate App

This app has been released on both iOS and Android. Knowledge Master have included four levels of A-Z mapping and an enhanced POI database. All maps are downloaded to your device so you don't need to rely on an Internet connection to use the maps. Searching the index is extremely fast thanks to the customised predictive keyboard.

Where to buy